Chun-Sheng, Li created NIFI-15138:
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Summary: Fix UndefinedVar warning for the NiFi Dokcer build
Key: NIFI-15138
URL: https://issues.apache.org/jira/browse/NIFI-15138
Project: Apache NiFi
Issue Type: Improvement
Components: Docker
Reporter: Chun-Sheng, Li
Assignee: Chun-Sheng, Li
When running the following command to build the NiFi Docker image, it will
present the undefined variable warning.
{code:java}
$ docker build -t apache/nifi:latest .
[+] Building 35.9s (6/15)
docker:default
=> [internal] load build definition from Dockerfile
0.0s
=> => transferring dockerfile: 5.09kB
......
4 warnings found (use docker --debug to expand):
- UndefinedVar: Usage of undefined variable '$DISTRO_PATH' (line 32)
- UndefinedVar: Usage of undefined variable '$NIFI_BINARY_PATH' (line 33)
- UndefinedVar: Usage of undefined variable '$NIFI_TOOLKIT_BINARY_PATH' (line
34)
- UndefinedVar: Usage of undefined variable '$MIRROR_BASE_URL' (line 31) {code}
To fix these undefined vairables issue, it should declare vairable before using
and assigning the value to this variable.
Once resolving this issue, it can let users without confusing with these
warnings.
The useful reference is available
[here|https://docs.docker.com/reference/build-checks/undefined-var/].
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